Ohio Speed Shops Releases 6.2L LS3 with Self-Learning EFI

Being based out of Northeast Ohio can be a bit of a drag if you’re heavy into the car hobby. Located smack-dab in the middle of the Rust Belt, we get the worst of Winter; snow, ice, salty roads and below freezing temperatures. All of the tracks and dragstrips are closed, outdoor car shows are nonexistent and you may see one or two interesting vehicles throughout the Winter months.

However, that doesn’t persuade us to throw in the towel until Spring, nor does it deter us us to keep working on our projects through the rough and tumble of the Northeast. In fact, quite the opposite. It seems that just before winter had hit, a new speed and performance shop has opened, started by Chuck Fitch–a long-time speed parts specialist and Chevrolet Performance parts dealer.

Dubbed Ohio Speed Shops, Chuck’s new hot rod haven is set to offer gearheads all over, a new outlet in which to order the latest crate engine or speed part. His first creation, is exclusive 525 hp LS3 crate engine, that packs a self-learning EFI system from FiTech. For only $8,679.99, you get a high-10 second capable crate engine with 100% street-ability. Chuck sent us the entire breakdown the other day, and we passed it along for you below!

Official Release:

Ohio Speed Shops Brand New GM LS3 6.2L 525HP Crate Engine Package with Self-Learning EFI System w/Controller

Optional upgrades available:

  • Integrated auto transmission controller + $250.00
  • Oil pan change/upgrade. + $350.00 (average cost of engine swap style oil pans and installation)
  • Forced induction EFI system, supports up to 750HP + $250.00


Power: 525 HP @ 6200 RPM, 486 ft. lbs. of torque @ 5200 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.065” x 3.622”
Compression Ratio: 10.7:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .525” Intake / .525” exhaust
Cam Duration @ .050”: 226 deg. Intake / 236 deg. Exhaust
Lobe Separation: 110
Cylinder Heads: Aluminum L92/LS3 style ports
Combustion Chamber: 68cc
Valves: 2.165” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6600
GM Recommended Torque Converter Stall 3000-3400

Engine Includes:

Ignition Coils, Coil Harness, Plug Wires and Spark Plugs
OE Production Chevy SS oil pan
Exhaust Manifolds
Intake, 36lb/hr Injectors and 92mm Throttle Body
Self-Learning EFI ECU with complete harness Click Here for more information
Handheld controller with color touch screen & data log features
Flexible suction cup handheld controller arm & bracket
14” Auto Trans Flexplate
Harmonic Balancer Pulley
Aluminum Water Pump
Sensors, Oil, Temp, Knock, Cam & Crank
Bosch wide band O2 sensor with stainless clamp or weld on bung
Oil Filter
Passenger Side RH Oil Dipstick and Tube

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